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आर्तव चक्र Menstrual Cycle | मानव जनन Hu...

आर्तव चक्र Menstrual Cycle | मानव जनन Human Reproduction In Hindi 12th Biology Ch 3 L 7 | Yogesh sir

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Assertion : Ovulation occurs on the 14^(th) day of menstrual cycle in a human female . Reason : The high level of estrogen is controlled 2 or 3 days before this event due to negative feed back.

An examination was held during the 2 weeks of April 3rd-Sunday to 16th Saturday. There was 1 paper for the six subjects - Physics, Chemistry, Biology, Maths, English and Hindi. Only 1 paper per day No exam on Saturdays and Sundays and Holiday on April 5th. Only 3 exams were there in a week. Chemistry was before Biology and Maths was on the next day of Hindi. The day on which the paper of biology and maths were held was the same, while that for chemistry and physics was also the same. There was no exam for 3 days between Physics and the exam prior to it. Hindi exam on Tuesday and one exam between Hindi and English exam. There was at least a gap of one day between any 2 science paper. Which of the following exam was held on April 12th ?